Wash the apple, quarter and core it and cut into small pieces. Put it in a bowl and immediately mix in the lemon juice to stop it going brown. Quarter, peel and cut up the pear or cut the melon off its rind and cut into cubes. Peel and slice the kiwi fruit. Halve the grapes and remove the pips if they're not seedless. Mix all the fruit with sugar syrup (see below), or apple juice if you're in a hurry, and serve in individual glass dishes (chilled martini glasses look particularly cool).

Tip: Make the sugar syrup by putting equal quantities of sugar and water in a saucepan (say half a mugful of each) and leaving it over a very low heat until all the grains of sugar have dissolved. Bring to the boil and boil for 3-4 minutes. Cool before using (and remember that this is also the syrup you use for making cocktails, so save some for later). You could also make this fruit salad with orange and yellow fruit such as oranges or clementines, peaches, mango, papaya or pineapple, or with red and purple fruit such as berries and grapes.